146420249 has 4 divisors (see below), whose sum is σ = 146758836. Its totient is φ = 146081664.

The previous prime is 146420233. The next prime is 146420279. The reversal of 146420249 is 942024641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27457600 + 118962649 = 5240^2 + 10907^2 .

It is a cyclic number.

It is not a de Polignac number, because 146420249 - 2⁴ = 146420233 is a prime.

It is a super-3 number, since 3×146420249³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146420279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168644 + ... + 169509.

It is an arithmetic number, because the mean of its divisors is an integer number (36689709).

Almost surely, 2^146420249 is an apocalyptic number.

It is an amenable number.

146420249 is a deficient number, since it is larger than the sum of its proper divisors (338587).

146420249 is an equidigital number, since it uses as much as digits as its factorization.

146420249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338586.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 146420249 is about 12100.4235049853. The cubic root of 146420249 is about 527.0684823276.

The spelling of 146420249 in words is "one hundred forty-six million, four hundred twenty thousand, two hundred forty-nine".